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Low Fuel Pressure - I'm LOST!!!!!!
When I first start my car up, it hits the 40ish base pressure that is normal... Then after I wait around 8 seconds or so it immediately hits 27ish psi..
My vacuum reads as normal as it did before. I think it's able to hit the correct base pressure when I first start it because the fuel pump primes it up better or something..? Here's my setup - Boomba Fuel Rail Fuel Labs Gauge OEM Fuel Pressure Regulator Aeromotive 340 in the tank FIC 1100s Here's the worst part - I was personally invited to have my car in an airshow for a little bit this weekend and now I'm thinking I may not be able have it running correctly by then :crap: Please Help. Any advice is appreciated. |
Bump
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Check your voltage for your pump. Most of the time we have a problem with high fuel pressure.
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Originally Posted by AWDTerror
(Post 10222961)
Check your voltage for your pump. Most of the time we have a problem with high fuel pressure.
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Add an aftermarket fpr
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make sure when the pump installed the rubber grommet is still in between there and the pump hasn't slipped out
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Originally Posted by Anarchy99
(Post 10223225)
Add an aftermarket fpr
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Originally Posted by AWDTerror
(Post 10222961)
Check your voltage for your pump. Most of the time we have a problem with high fuel pressure.
Originally Posted by evo 9 guy
(Post 10222983)
Or maybe a bad pump???
Originally Posted by Anarchy99
(Post 10223225)
Add an aftermarket fpr
Originally Posted by SFL Autosports
(Post 10223232)
make sure when the pump installed the rubber grommet is still in between there and the pump hasn't slipped out
Thanks for all of your replies. |
Have u checked the small filter in the fuel pump assembly? It might be clogged, there for reading normal during the initial prime then dropping alot due to it being clogged.
It might not be the issue but it wont take longer than an hour to check... |
Also double check the vaccum line running from the intake mani to the FPR, and ziptie it on there if you havnt already.
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Originally Posted by louiesevox
(Post 10223808)
Have u checked the small filter in the fuel pump assembly? It might be clogged, there for reading normal during the initial prime then dropping alot due to it being clogged.
It might not be the issue but it wont take longer than an hour to check...
Originally Posted by hotstix
(Post 10223857)
Also double check the vaccum line running from the intake mani to the FPR, and ziptie it on there if you havnt already.
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Have you replaced your fuel pump relay?
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Originally Posted by Octane Blue
(Post 10223395)
Will do. So it should just be at 14ish volts, correct?
Hope not, it's brand new and was working fine before. K, give me the money and I'll go do that and find out it was something else. Can you expand on this please? Sorry, I have a pretty bad memory of what everything looked like when I installed it. Thanks for all of your replies. |
Originally Posted by hotstix
(Post 10223933)
Have you replaced your fuel pump relay?
Originally Posted by SFL Autosports
(Post 10224222)
Contact me and i'll run you through it
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Originally Posted by Octane Blue
(Post 10224405)
I checked it. I swapped it out with my headlight relay and it works just fine.
How late are you guys open? |
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